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INSTALLATION
A1.3 A1.3
CLASSIC® 300D & 300G
GENERAL DESCRIPTION
The Classic
®
300 D is a heavy duty, engine driven, DC
arc welding power source, capable of providing con-
stant current output for stick welding or DC TIG weld-
ing. This welder is wound with all copper coils, rated at
300 amps/32 Volts, and provides other Classic® fea-
tures such as improved door latches and stainless
hinges. With the addition of the optional K623-1 Wire
Feed Module
™
, the Classic® 300 D will provide con-
stant voltage output for running the LN-7, LN-23P, or
LN-25 wire feeders. (The Wire Feed Module is factory
installed on the K1643-2). The optional K924-4 or
K924-5 Remote Control Kit (Both field installed) See
Section C for description.
The Classic® 300 D has Diesel Engine Protection. In
the event of sudden low oil pressure or high coolant
temperature, the engine immediately shuts down. The
Classic® 300 D has a current range of 40-350 DC
amps with output ratings as follows:
These units are also capable of providing 3 kVA of
115/230 volts of 60 cycle AC auxiliary power.
The Classic® 300 D uses the Perkins 104-22 industri-
al water-cooled diesel engine.
DESIGN FEATURES
Control Panel
Both the engine and the welder controls are located on
one recessed panel at the exciter end of the machine.
The welder controls consist of a five step “Current
Range Selector” switch and a “Fine Current
Adjustment” rheostat. The welder is equipped with a
“Start” button, an “Ignition” switch, an “Idler” control
switch, and a “Glow Plug” button for easier cold weath-
er starting.
The control panel also contains an engine temperature
gauge, a battery charging ammeter, an oil pressure
gauge, two three prong grounding type receptacles
and four circuit breakers for auxiliary power.
All Copper Windings - For long life and dependable
operation.
Engine Idler - The Classic® 300 D is equipped with
an electronic automatic engine idler. It automatically
increases and decreases engine speed when starting
and stopping welding or using auxiliary power. A
built-in time delay permits changing electrodes before
the engine slows to its low idle speed. The “Idler” con-
trol switch on the panel locks the idler in high idle posi-
tion when desired.
Auxiliary Power - 3.0 kVA of nominal 115/230V, 60Hz,
AC. Output voltage is maintained within ± 10% at all
loads up to rated capacity. (See Optional Features
in Section C for Power Plug Kit.)
Welder Enclosure - The complete welder is rubber
mounted on a rugged steel “C” channel base.
The output terminals are placed at the side of the
machines so that they are protected by the door. The
output terminals are labeled (+) and (-).
Cranking System - A 12 volt electric starter is stan-
dard.
Air Cleaner - Heavy duty two stage dry type.
Muffler - A muffler and stainless steel exhaust outlet
elbow are standard.
Engine Hour Meter - A meter to record hours of oper-
ation.
Engine Protection - The system shuts the engine
down in the event of sudden low oil pressure or high
coolant temperature. A warning light on the control
panel will indicate such a fault. To reset the engine for
restarting, turn the ignition switch off then on.
250A @ 30V
300A @ 32V
100%
60%
RATED OUTPUT DUTY CYCLE
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